The Taconic Unconformity is exposed at the far right of this roadcut and detailed in another GigaPan (). Above the unconformity are the homoclinally dipping strata of the Silurian Rondout Fm. and the Lower Devonian Manlius, Coeymans, and Klakberg Formations which constitute the lower portion of the Helderberg Group (Marshak and Engelder, 1987). This roadcut is outcrop N5 of Field Trip #28 in the GSA Centennial Field Guide #5 (Northeast Section GSA) and is exposed along an exit ramp of New York Highway 23 near Catskill, NY.